Ventilator



S. l. THOMAS Nov. 12, 1940.

VENTILATOR Filed April 1, 1940 Samuel J. Thomas Patented Nov. 12, 1940UNITED STATES PATENT OFFICE 2,221,497 VENTILATOR Samuel I. Thomas,Emporia, Kans. Application April 1, 1940, Serial No. 327,355

3 Claims.

Theinvention relates to a ventilator and more especially to a windowventilator.

The primary object of theinvention is the provision of a ventilatorofthis character wherein its construction enables the use thereof with astorm sash or a stock window construction of conventional makeup, thuseliminating the necessity of altering the character of either the sashor the window makeup for the use of said ventilator.

Another object of the invention is the provision of a ventilator of thischaracter wherein the construction thereof makes it possible for theremoval of foul air from the top of an enclosure without creating adraft or admitting cold air into the said enclosure and thus renderingthe enclosure more healthful.

A further object of the invention is the provision of a ventilator ofthis character wherein the same may be left open during storms orinclement weather without any bad results as the air in the top of anenclosure is under sufficient pressure that it continues to fiow outthrough the ventilator against the outside atmospheric pressure and whenthe ventilator is in continued use throughout the seasons of a year,during the summer months the enclosure will be rendered cooler due tothe operation of the ventilator and in winter the outside cold will beexcluded from entering the enclosure. 1

A still further object of the invention is the provision of a ventilatorof this character, which is simple in its construction, thoroughlyreliable and efficient in operation, easy of installation, durable, andinexpensive to manufacture and install. 1

With these and other objects in View, the invention consists in thefeatures of construction, combination and arrangement of parts as will40 be hereinafter more fully described in detail, illustrated in theaccompanying drawing, which discloses the preferred embodiment of the,invention and pointed out in the claims hereunto appended.

In the accompanying drawing:

Figure l is a perspective view of a window in cluding a storm sashshowing the ventilator constructed in accordance with the inventionapplied for service.

Figure 2 is an enlargedfragmentary vertical transverse sectional viewtaken through the window and ventilator.

Figure 3 is a fragmentary vertical transverse sectional view on afurther enlarged scale than I 56 in Figure 2 showing in detail theventilator.

Similar reference characters indicate corresponding parts throughout theseveral views in the drawing.

Referring to the drawing in detail, A designates generally a windowframe provided with the usual guide rails or strips 10 for verticallyslidable lower and upper glass paned sashes ii and I2, respectively, thewindow in its entirety being of stock makeup and conventional in alldetails.

In this instance there is removably fittedin the window frame A at theoutside thereof a glass paneled storm sash I3 which in its length isslightly less than the longitudinal extent of the window frame A so asto accommodate between it and the said frame for association therewiththe ventilator constituting the present invention and hereinafter fullydescribed.

The ventilator comprises a sheet metal body formed with a flat bottom I4, vertical ends l5, flat top l6 and an outwardly sloping front shieldor hood ll, respectively. The shield or hood I! is joined with the endsl5 through overlapped portions 18. This shield or hood is carried adistance below the plane of the bottom l4 and is formed with an inturnedlower edge flange [9.

The body thus constituted forms an airway therethrough, as indicated bythe arrow in Figure 2 of the drawing, from without to within anenclosure through the window A.

Arranged within the body and joined with the bottom ends and top thereofis a wire mesh screen 2!] which excludes insects or the like fromgaining entrance from without to within an enclosure through theventilator. This screen 20 is of hardware cloth and is attached at 2| tothe top I 6 of the body of the ventilator.

, The bottom I4 has a downturned lip or flange 22 at a forward edgethereof to overlap the upper rail 23 of the storm sash [3 to close thejoint between the ventilator and, the said sash when the body of suchventilator is interposed between such sash and the head or top of theframe A.

The bottom [4 of the ventilator at the uppermost edge thereof has anupwardly angled extension 24, the angle being to the horizontal andsubstantially equals the width of a parting strip 25 between the sash l3and the upper sash l2 of the window frame A. Thus this extension 24closes the gap created by the strip 25 between the upper sash l2 and thesash l3 when the said upper sash is lowered from a closing position tohave its uppermost rail make contact with the said extension 24 as shownin Figure 3 of the drawing.

Of course it is to be understood that when the storm sash I? has beenremoved from the window frame A the ventilator body can be fittedbetween the upper rail of the upper sash l2 in the head or top of thewindow frame A so that ventilation will be had through the window at theuppermost portion thereof. The shield or hood I! avoids any ingress ofrain, sleet or snow during the winter months from without to within anenclosure through the window frame A and the ventilator when in usetherewith.

The ventilator is susceptible of use with the storm sash or with thewindow of conventional or stock construction when such storm sash hasbeen removed therefrom, this being optional with the possessor of saidventilator.

The screen 23 can be soldered or otherwise attached in position withinthe body of the ventilator.

The ventilator when fitting a window will not interfere with the raisingand lowering of its sashes, both upper and lower, and thoroughventilation may be had thereby assuring a clean atmosphere within theenclosure and proper ventilation of the same.

What is claimed is:

1. A ventilator of the kind described comprising a'body having alongitudinal dimension for fitting a window and including a bottom, endsand top, respectively, arranged for air flow therebetween, a slopingshield extending from the top to a point below the plane of the bottomof said body, a downturned flange at the forward edge of the bottom andeffective as an overlap to a sash of the window, anda lip extending fromthe rear portion of the bottom for closing a gap between the said bodyand the sash next thereto.

2. A ventilator of the kind described comprising a body having alongitudinal dimension for fitting a window and including abottom, endsand top, respectively, arranged for air flow therebetween, a slopingshield extending from the top to a point below the plane of the bottomof said body, a downturned flange at the forward edge of the bottom andefiective as an overlap to a sash of the window, a lip extending fromthe rear portion of the bottom for closing a gap between the said bodyand the sash next thereto,

and a screen located within the body.

3. A ventilator of the kind described comprising a body having alongitudinal dimension for fitting a window and including a bottom, endsand top, respectively, arranged for airflow therebetween, a slopingshield extending from the top to a point below the plane of the bottomof said body, a downturned flange at the forward edge of the bottom andeffective as an overlap to a sash of the window, a lip extending fromthe rear portion of the bottom for closing a gap be-

